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Adiantum formosum (Giant Maidenhair Fern)

Giant Maidenhair Fern, Black Stem Maidenhair

Adiantum formosum (Giant Maidenhair Fern) is a striking fern admired for its tall, elegant fronds and delicate leaf structure held on fine black stems. This impressive variety brings height, softness, and refined texture to shaded NZ environments. Thriving in moist, sheltered conditions, it creates a lush, graceful presence in indoor spaces, patios, and shaded garden beds. Its upright habit and airy movement make it a captivating feature plant year round.

Adiantum formosum fern in a shade garden and featuring slender, green fronds.

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Suited to regions:Subtropical, Temperate
Plant type:Ferns
Height:80 cm
Spread:50 cm
Flowering time:
Tolerances:Shade
Garden uses:Borders, Containers, Living areas, Paths & Steps, Ponds, Pool areas
Garden styles:Backyard, City & Courtyard, Frontyard, Modern, Woodland
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asGiant Maidenhair Fern, Black Stem Maidenhair
Sku16447

How to grow Adiantum formosum (Giant Maidenhair Fern) in NZ

Adiantum formosum (Giant Maidenhair Fern) grows best in part shade to full shade and prefers moist, humus rich, free draining soil. Select a sheltered site out of direct sun, strong wind, and temperature fluctuations. Keep the soil evenly moist during establishment, and maintain good humidity indoors. This fern thrives in woodland gardens, shaded patios, bathrooms, and protected garden beds across NZ when provided with consistent moisture and gentle conditions.

Adiantum formosum (Giant Maidenhair Fern) care tips

Adiantum formosum (Giant Maidenhair Fern) responds well to steady moisture, shade, and shelter. Water regularly to keep the soil lightly damp and mist the fronds during dry or heated periods to maintain humidity. Remove any damaged fronds to encourage fresh growth. Avoid direct sun, draughts, and very dry indoor air. A gentle liquid fertiliser in spring and summer supports strong, healthy new foliage on this elegant larger scale fern.

Adiantum formosum (Giant Maidenhair Fern) size spacing and growth rate

Adiantum formosum (Giant Maidenhair Fern) typically grows sixty to one hundred centimetres tall and forty to sixty centimetres wide. When planting in clusters, space plants around forty to fifty centimetres apart. Growth is moderate, forming upright clumps with tall, graceful fronds. Once established, it becomes a long lived and impressive ornamental fern ideal for creating height and fine texture in shaded garden or indoor settings.

Landscaping uses for Adiantum formosum (Giant Maidenhair Fern)

Adiantum formosum (Giant Maidenhair Fern) is ideal for adding height and elegance to indoor plant collections, shaded patios, woodland gardens, and moist rockeries. Its tall fronds pair beautifully with lower growing ferns, hosta, asplenium, and peace lily. Use it as a feature plant in large pots, to soften walls or corners, or to create lush layered plantings. Its refined foliage brings a sense of calm and sophistication to shaded spaces.

Why buy Adiantum formosum (Giant Maidenhair Fern) from The Plant Company?

Adiantum formosum (Giant Maidenhair Fern) from The Plant Company is grown with care to ensure strong root systems, healthy fronds, and dependable performance in NZ conditions. Each plant is selected for premium quality and long term resilience. The Plant Company is NZs most trusted plant nursery and provides expert support to help your ferns thrive. Choosing this fern ensures top grade stock with impressive ornamental value for shaded environments.

Questions and Answers

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